This ROM is for galaxy on7 plus SM G600Fy only. You have to install gapps separately.For more info about this visit here.
Procedure
Download the custom ROM file on your desktop.
Now, plug your device using the USB data cable and mount its memory storage.
Transfer the zip file downloaded in Step 1 to the root folder of your phone.
Unplug your device and boot it into recovery mode.
After your device is in recovery mode, perform wipe data/factory reset, wipe cache partition and wipe Dalvik Cache by navigating to Advanced -> Wipe Dalvik Cache.
Now, go back to the main Recovery Menu and choose the option “Install zip from SD card -> Choose zip from SD card”.
Now navigate to the zip file which you transferred to the root folder. Select the ROM zip file and then using Power button, confirm to begin the installation.
Install the gapps following same procedure.
Now navigate to ++Go Back++ once your installation completes. From the recovery menu, reboot your device.
Once it reboots, you can enjoy the newly installed custom ROM.